EP3002772A1 - Appareil de commutation doté d'un dispositif de blocage pour un affichage fiable de position - Google Patents

Appareil de commutation doté d'un dispositif de blocage pour un affichage fiable de position Download PDF

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Publication number
EP3002772A1
EP3002772A1 EP14187299.4A EP14187299A EP3002772A1 EP 3002772 A1 EP3002772 A1 EP 3002772A1 EP 14187299 A EP14187299 A EP 14187299A EP 3002772 A1 EP3002772 A1 EP 3002772A1
Authority
EP
European Patent Office
Prior art keywords
switching
switching device
drive shaft
transmission mechanism
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14187299.4A
Other languages
German (de)
English (en)
Other versions
EP3002772B1 (fr
Inventor
Rainer Kreutzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP14187299.4A priority Critical patent/EP3002772B1/fr
Priority to CN201510370173.7A priority patent/CN105489451B/zh
Publication of EP3002772A1 publication Critical patent/EP3002772A1/fr
Application granted granted Critical
Publication of EP3002772B1 publication Critical patent/EP3002772B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the invention relates to a switching device with a locking device for a reliable switching position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which operates a shift lever via a second transmission mechanism, and with a contact system, which is a firmly positioned Having contact piece with contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece.
  • Switching devices serve, among other things, the safe switching off in the event of a short circuit and thereby protect consumer installations.
  • electrical or mechanical switching units are suitable for the operational manual switching of consumers as well as for the safe disconnection of a system from the mains during maintenance work or when changing the system. Electrical switching units are often operated electromagnetically.
  • switching units are high-quality electrical switching devices with integrated protection for motors, lines, transformers and generators. They are used more closely at workstations with a lower switching frequency. Such switching units are suitable in addition to the short circuit protection for overload protection.
  • Circuit breakers have two separate release mechanisms for overload and short-circuit protection. Both triggers are connected in series. Short-circuit protection is provided by an electromagnetic release that acts almost instantaneously. In the event of a short circuit, the electromagnetic release unlocks without delay a circuit breaker of the circuit breaker. A switching armature disconnects the contactor before the short-circuit current can reach its maximum value.
  • switching units have a contact slide unit with a contact slide and a movable contact piece.
  • the movable contact piece also has electrical contacts.
  • switching units have first contacts to a power line. In an on state, the electrical contacts of the movable contact piece contact the fixed contacts of the switching unit. In the event of a short circuit, the electrical contacts of the movable contact piece are released from the fixed contacts, so that the flow of current is interrupted. Here, the movable contact is released from the fixed contacts.
  • circuit breakers In addition to their protective functions as overload and short-circuit releases, as already mentioned above, circuit breakers also fulfill the normative switching on and off of motors. To prove this function, the circuit-breakers must be able to switch on ten times the rated motor current according to the product standard. In order to ensure this limit load, it is necessary that the circuit breaker the double interruption of the three current paths in the form of one movable Bridge with two movable contact points and two fixed contact points, almost simultaneously and in a jump function closes.
  • the contact slide is accelerated during the switch-on and continues to move even after the impact of the bridges on the Festschalt consultancyen until it is reflected at a stop.
  • the reflection and the resulting kinetic energy of the contact slide reopen the contact system. This can lead to welds with a simultaneously increased current in this current path.
  • the actuator can not be transferred to a lockable, switched-off position. Accordingly, there is the technical requirement to block the switch position display when welded main contacts and display this switch position safely and reliably.
  • the object of the present invention is to provide a switching device with a locking device for reliable switching position display in welded main contacts.
  • a switching device with a locking device for a reliable switch position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which operates a shift lever via a second transmission mechanism, and with a contact system which a fixedly positioned contact piece having contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece.
  • the invention is characterized in that the first transmission mechanism has a drive shaft, which is coupled both to the switch lock, as well as to a separate locking device through which a switch position for a contact system with welded contacts can be transferred.
  • the essence of the invention is that on the drive shaft, a rotatably mounted part is plugged in the form of a Drehsperrriegels.
  • This rotary locking bolt has a nose, which serves as catching tines and is in operative connection with a catching surface which is positioned on a component, preferably a counter-wheel, of the first transmission mechanism.
  • the angular position of the anti-rotation bolt is not controlled by the cam lock kinematics including the drive shaft.
  • the control takes place outside of the switching mechanism via a direct operative connection with a locking lever to a motion transmission part in the form of an articulation lever, which is closer to the main contacts seen in the direction of movement.
  • the locking lever is therefore on the one hand connected to the articulation lever and on the other hand receives a pin of the Drehsperrriegels in its bearing point.
  • each lateral movement of the articulation lever is converted directly into a rotation angle of the Drehsperrriegels.
  • a rotational angle position on the rotary locking bolt in which the catch surface meets the tines, so that the switched-off switching position is blocked, as a result of which the switching device is no longer lockable.
  • the rotary locking bolt and the drive shaft respectively correspondingly trained support areas, which are supported by torque or force, each other.
  • the drive shaft is coupled via a plugged onto the drive shaft rotary locking bolt to the blocking device.
  • the blocking device is formed of rotary locking bolt and locking lever, which accesses via a bearing on a journal of the Drehsperrriegels and thus is in operative connection with the rotary locking bolt.
  • the blocking device comprises a locking lever which is coupled at a first end via a bearing on the rotary locking bolt and which is at its second end in operative connection with an articulation lever which acts on the shift lever.
  • the second transmission mechanism essentially forms the articulation lever, which actuates the shift lever, which is in operative connection with the contact system of fixedly positioned and movable contact piece.
  • the locking lever is the connecting link between the turnstile and the lever.
  • a further concept may consist in that the rotary locking bolt has a nose serving as a catching surface. This serving as a catch surface nose engages with a tine, which is positioned on the first transmission mechanism in the form of a mating gear, into each other. This interlocking of the catch area with the catch tines forms the switching blockade, by which the switching device is ultimately no longer lockable, but indicates a switching position state indicating a welded contact system.
  • a rotary locking bolt is attached as part of the blocking device on the drive shaft.
  • the blocking device which essentially comprises the rotary locking bolt and the locking lever, enables a separate and secure transmission of the switching position state in the welded contact system.
  • a further concept may consist in that the first transmission mechanism has a mating wheel coupled to the actuating element, which has a catching surface.
  • the interaction of safety tines on the rotary locking bolt and catch surface on the mating gear represents the switching blockage, which means that the switching device is not lockable.
  • An inventive continuation of this concept may consist in that the catch surface is formed on the mating gear as a cylinder shell portion section surface.
  • the design of the catch surface as a cylinder jacket part section surface has the advantage that this surface is adapted to the curvature of the mating gear, so that the risk is minimized that the tines could break off.
  • the switching device is a circuit breaker.
  • the switching device according to the invention with a locking device for reliable switching position display in welded contact system has a manually operable actuating element, which is in operative connection with a mating gear which is coupled to a drive shaft.
  • the surface normal of the counter-wheel stands essentially orthogonal to the axis of rotation of the drive shaft or the surface of the mating gear is positioned substantially parallel to the axis of rotation of the drive shaft.
  • the drive shaft is preferably cylindrical and merges at one end into a circular segment partial section contour. About this circular segment partial section contour, the drive shaft is coupled to an indexing rocker of a switching mechanism, in which engages this circular segment part section contour in a recess in the toothed rocker.
  • first tuck which is formed as a support surface for a catch surface, which is preferably formed in the form of a cylinder shell part section area, on the counter-wheel.
  • the application of the first tipping on the drive shaft with the catch surface on the mating wheel takes place in the switched-off state.
  • a rotary locking bolt On the drive shaft, a rotary locking bolt is attached, which is cylindrical.
  • a second catch tine is formed, on which the catching surface meets the mating wheel when the contact system is welded.
  • the second tine on Drehsperrriegel blocks the catch surface on Ge Vietnameserad so that it can not be further implemented to the first tine on the drive shaft and the proper switched-off state in which the contact pieces of the contact system are spaced apart and the switching device is shut off is not achieved.
  • a pin is arranged on the rotary locking bolt, which is coupled to a bearing of a locking lever.
  • the locking lever is operatively connected to an articulation lever, which is coupled to a shift lever, via which the contact system of fixedly positioned contact piece and movable contact piece, which is guided in a contact slide, is actuated.
  • the locking lever serves as a blocking device and prevents the switched-off switching position can be achieved.
  • the articulation lever serves as a transmission mechanism of the contact system to the actuator, which serves as a switching position status indicator.
  • the switching device according to the invention with a blocking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented.
  • the winding position which occupies the turn-lock on the drive shaft, is directly and thus past the switchgear kinematics, controllable. Due to the separately executed blocking device, there is no more tolerance dependence between the components.
  • the blocking position is defined mechanically precisely.
  • Fig. 1 shows a portion of a switching device according to the invention with a locking device for a reliable switching position display in welded contact system.
  • the switching device has a manually operable actuating element 1, which is in operative connection with a counter-wheel 2, which is coupled to a drive shaft 3.
  • the surface normal of the counter-wheel 2 is substantially orthogonal to the axis of rotation of the drive shaft 3 or the surface of the counter-wheel 2 is positioned substantially parallel to the axis of rotation of the drive shaft 3.
  • the drive shaft 3 is preferably cylindrical and merges at one end into a circular segment partial section contour 4.
  • the drive shaft 3 is coupled to a toothed rocker of a switching mechanism, in which engages this circular segment part section contour 4 in a recess in the toothed rocker.
  • a first tuck 5 which is formed as a support surface for a catch surface 6, which is preferably formed in the form of a cylinder shell portion section surface on the mating. The application of the first tine 5 on the drive shaft 3 with the catch surface 6 on the mating gear 2 takes place in the switched-off state.
  • a rotary locking bolt 7 is attached, which is cylindrical.
  • a second tine 8 is formed on which the catch surface 6 meets the mating gear 2 when the contact system is welded.
  • the second tine 8 on the rotary locking bolt. 7 blocks the catch surface 6 on the mating gear 2, so that it can not be further implemented to the first tine 5 on the drive shaft 3 and the properly switched off circuit state in which the contact pieces of the contact system are spaced apart and the switching device is shut off is not achieved.
  • a pin 9 is arranged on the rotary locking bolt 7, which is coupled to a bearing 10 of a locking lever 11 which forms the blocking device together with the rotary locking bolt 7.
  • the locking lever 11 is operatively connected to an articulation lever 12, which is coupled to a shift lever 13, via which the contact system 14 of fixedly positioned switching piece and movable contact piece 15, which is guided in a contact slide 16, is actuated.
  • the locking lever 11 is part of the blocking device and prevents the switched-off switching position can be achieved.
  • the articulation lever 12 serves as a transmission mechanism between the contact system 14 and the actuating element 1, which serves as a switching position status indicator.
  • Fig. 2 shows the relevant components for the blocking device in an exploded view.
  • Fig. 2 shows essentially the bipartite of drive shaft 3 and turn-lock latch 7, which is plugged onto the drive shaft 3.
  • the Drehsperrriegels 7 With proper positioning of the Drehsperrriegels 7 on the drive shaft 3 engages a pin 17 of the combined component of actuator 1 and mating gear 2 in a recess 18 of the cylindrically shaped Drehsperrriegels 7.
  • the pin 9 of the Drehsperrriegels. 7 the outside of the drive shaft 3, so that it can engage in the bearing 10 of the locking lever 11.
  • Fig. 3 shows the turn-lock latch 7, which forms together with the locking lever 11, the blocking device for a switching position state in welded contact system.
  • the rotary locking bolt 7 is formed substantially cylindrical, wherein protrudes from the cylindrical basic shape of the Drehsperrriegels 7 of the second catch tines 8, which prevents the passing of the catch surface 6 on the mating gear 2, which is preferably designed as a cylinder jacket part section surface in the present welded contact system.
  • the pin 9 is arranged, which is coupled to the bearing 10 of the locking lever 11.
  • Fig. 4 the triggering mechanism of the blocking device is shown in a welded contact system.
  • the catch surface 6 of the counter-wheel 2 strikes the second catch tines 8 of the Drehsperrriegels 7.
  • the catching surface 6 of the counter-wheel can thus not slide through to the first catching tines 5 of the drive shaft 3.
  • the actuating element 1 is firmly stuck in a half position between the switched-off switching position and the switched-on switching position, as a result of which the actuating element also serves as a switching position status indicator.
  • Fig. 5 the transmission chain from the actuator 1 to the contact system 14 is shown in the off state.
  • the movable contact piece 15 is spaced from the fixedly positioned switching piece.
  • Fig. 6 shows the transmission chain from the actuator 1 to the contact system 14 in the on state.
  • the movable contact piece 15 rests on the fixedly positioned contact piece.
  • the actuator 1 is rotated by 90 ° to the actuator in the off state.
  • Fig. 7 shows the transmission chain from the actuator 1 to the contact system 14 in welded contact system 14. Even with a welded contact system 14, the movable contact piece 15 is located on the fixed-positioned contact piece. The actuating element 1 is in a welded contact system in an intermediate position between the off state and the on state.
  • the switching device according to the invention with a blocking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented.
  • the angular position, which takes the turn-lock on the drive shaft, is directly and thus controlled by the switchgear kinematics over. Due to the separately executed blocking device, there is no more tolerance dependence between the components.
  • the blocking position is defined mechanically precisely.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
EP14187299.4A 2014-10-01 2014-10-01 Disjoncteur doté d'un dispositif de blocage pour un affichage fiable de position Active EP3002772B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14187299.4A EP3002772B1 (fr) 2014-10-01 2014-10-01 Disjoncteur doté d'un dispositif de blocage pour un affichage fiable de position
CN201510370173.7A CN105489451B (zh) 2014-10-01 2015-06-29 具有用于显示开关位置的闭锁装置的开关设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14187299.4A EP3002772B1 (fr) 2014-10-01 2014-10-01 Disjoncteur doté d'un dispositif de blocage pour un affichage fiable de position

Publications (2)

Publication Number Publication Date
EP3002772A1 true EP3002772A1 (fr) 2016-04-06
EP3002772B1 EP3002772B1 (fr) 2017-07-19

Family

ID=51655601

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Application Number Title Priority Date Filing Date
EP14187299.4A Active EP3002772B1 (fr) 2014-10-01 2014-10-01 Disjoncteur doté d'un dispositif de blocage pour un affichage fiable de position

Country Status (2)

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EP (1) EP3002772B1 (fr)
CN (1) CN105489451B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3293747A1 (fr) * 2016-09-13 2018-03-14 Siemens Aktiengesellschaft Appareil de commutation comprenant un dispositif pour l'indication de la position de commutation fiable pour des contacts soudés

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703962C1 (de) * 1997-02-03 1998-06-10 Siemens Ag Leistungsschalter zum Schalten elektrischer Stromkreise
EP1401004A2 (fr) * 2002-09-20 2004-03-24 ABB PATENT GmbH Disjoncteur électrique
US6969813B1 (en) * 2004-08-24 2005-11-29 Siemens Energy & Automation, Inc. Direct mount rotary handle operating mechanism which is suitable for isolation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703962C1 (de) * 1997-02-03 1998-06-10 Siemens Ag Leistungsschalter zum Schalten elektrischer Stromkreise
EP1401004A2 (fr) * 2002-09-20 2004-03-24 ABB PATENT GmbH Disjoncteur électrique
US6969813B1 (en) * 2004-08-24 2005-11-29 Siemens Energy & Automation, Inc. Direct mount rotary handle operating mechanism which is suitable for isolation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3293747A1 (fr) * 2016-09-13 2018-03-14 Siemens Aktiengesellschaft Appareil de commutation comprenant un dispositif pour l'indication de la position de commutation fiable pour des contacts soudés
CN107818891A (zh) * 2016-09-13 2018-03-20 西门子公司 具有在触点熔焊时可靠显示开关位置的装置的开关设备
CN107818891B (zh) * 2016-09-13 2020-03-06 西门子公司 具有在触点熔焊时可靠显示开关位置的装置的开关设备

Also Published As

Publication number Publication date
CN105489451B (zh) 2018-05-11
EP3002772B1 (fr) 2017-07-19
CN105489451A (zh) 2016-04-13

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